baber/WOPTO huggingface dataset:
Patent GB-1272603-A (GB)
Title: Time division multiplex communication system
IPC: H04J3/16
Filed: 1969-07-30
Abstract: 1,272,603. Multiplex pulse signalling. INTERNATIONAL BUSINESS MACHINES CORP. 30 July, 1969 [15 Aug., 1968], No. 38212/69. Heading H4L. Voice signals on twenty-four input channels 10, Fig. 1, are sampled sequentially at 18 and converted into pulse position modulated signals at 20, Fig. 4. The output of the modulator 20 controls a bi-stable circuit 30 to produce a square wave output, Fig. 5, which has zero crossings corresponding to the leading edges of the position modulated pulses, this output being supplied via a filter 36, producing the sinusoidal waveform 34, Fig. 6, to the transmission channel 14. By this means the bandwidth requirements are reduced. In some applications the filter 36 may be omitted, the transmission line itself producing the waveform 34 at the receiver. At the receiver the incoming signal is amplified and squared at 50 to produce the waveform of Fig. 5, amplitude modulated signals are produced at 52 in response to the position-modulated zero crossings and the resulting signal samples are supplied to a distributor 54. In a modification, Fig. 8 (not shown), crosstalk is reduced by providing a sampling circuit (70) controlled by a signal generator (76) to operate in a pseudo-random manner which is followed by a sequential distributor (68) supplying the pulse position modulator (20) so that the channels are arranged in differing sequences in successive channels. The receiver includes a distributor (74) operating in an inverse manner to the distributor (70) under the control of a signal generator (78). This arrangement also provides an element of secrecy. In an alternative arrangement, Fig. 11, using time compression for reducing crosstalk, the incoming voice signals are sampled sequentially at 88, converted to digital form at 92 and stored at 94 under the control of timing circuits 96. After a desired number of samples from each channel have been stored all the signals of the first channel are read out in sequence to a digital-to-analogue converter followed after a blanking interval, by all the signals of the second channel and so on, the resulting analogue signals being converted to pulse position modulation at 20 and then converted to a square waveform and subsequently a sinusoidal waveform as previously described. At the receiver, the amplitude modulated signals produced at 52 are supplied to an analogue-todigital converter 102, stored at 104 and read out to a digital-to-analogue converter 106 under the control of timing circuits 108 the resulting signals being distributed sequentially to the appropriate channels at 110. The blanking intervals synchronize the timing circuits 108.
Patent GB-359299-A (GB)
Title: Improvements in or relating to turning lathes
IPC: B23B13/00
Filed: 1930-12-20
Abstract: 359,299. Lathes. HAHN, H., HAHN, 0., and TESSKY, K., (trading as INDEXWERKE HAHN & KOLB), Esslingen-on. Neckar, Germany. Dec. 20, 1930, No. 38417. Convention date, Dec. 20, 1929. [Class 83 (iii).] In a lathe or like machine tool in which the clamping and feeding means for the workbar are actuated from a control cam c through levers d, f respectively, the cam c may be driven either directly from the main cam shaft a or indirectly from a driving shaft q which drives the main cam shaft through gearing r, t. The shaft q carries a wheel o engaging a wheel n fixed on a shaft m passing through a sleeve 4 carrying a wheel k connected to a wheel h secured to the control cam. A clutch member 3 splined on the sleeve 4 is normally urged by a spring 5 into engagement with the driven wheel n. The clutch is controlled by a lever w and cam x. When the lever is operated by its cam, a projection is withdrawn from a recessed groove 6, Fig. 6, in the clutch, thus allowing the spring to effect the engagement. After one revolution of the clutch, the lever drops into the recess 7 whereupon the inclined portion 9 of the recess causes the clutch to be moved axially to disengage the drive. In cases where the shaft a is driven sufficiently quickly for the feeding and clamping to be effected without undue loss of time, the wheel h is replaced by a clutch sleeve having a projection which couples the control cam directly with the shaft a. In a modification, Fig. 5, the wheel h is provided with a coupling part z<1>, the parts h, z<1> being moved axially by a hand-lever l to engage either the direct or the indirect drives. In a further modification the clutch 3 may be mounted on an extension q<1> of the shaft q so as to drive the wheel i directly from this shaft.
Patent GB-1171328-A (GB)
Title: Improvements in or relating to the manufacture of Filters for Cigarettes or like Smoking Articles
IPC: A24D3/02
Filed: 1967-08-22
Abstract: 1,171,328. Making tobacco-smoke filters. MOLINS MACHINE CO. Ltd. and N. W, JACKSON. 21 Aug., 1968 [22 Aug., 1967], No. 38583/67. Heading A2C. A method of making cigarette filter rods containing smoke-permeable stubs and quantities of particulate material in alternation along the length of a rod, comprises; arranging on a wrapping strip at spaced intervals stubs which are of larger cross-section and less density than required in the final product, conforming the strip with the surfaces of the stubs into a trough shape, feeding particulate material into the trough-shaped strip and between the stubs, folding the trough-shaped strip into a tube about the stubs to enclose the particulate material, and compressing the stubs to the desired cross-sectional size and density. The apparatus used is generally similar to a part of that disclosed in Specification 1,106,931 except that the succession of guides through which the garniture tape carries the wrapping strip are specially shaped to produce the above required shaping of the strip and compression of the stubs.
Patent GB-1517698-A (GB)
Title: Vehicle towing arrangements
IPC: B60D1/34
Filed: 1975-09-12
Abstract: 1517698 Towing apparatus H JAMIESON 12 Sept 1975 [4 Sept 1974] 38617/74 Heading B7T Load transfer apparatus for reducing downward deflection of the rear end of a towing vehicle comprises spring rods 17 having first end portions 18 detachably pivoted to an anchorage 19 carried by the towing vehicle and second end portions 22 supported for longitudinal movement in brackets 16 mounted on the towing frame 14 of a towed vehicle. Each spring rod end portion 18 is detachably retained in a bore 23 of the anchorage 19 by means of a flange projecting from the wall of the bore into a necked portion of the spring rod.
Patent GB-1491990-A (GB)
Title: Dewatering of a web in a paper-making machine press section
IPC: D21F3/04
Filed: 1975-09-22
Abstract: 1491990 Pressing paper VALMET OY 22 Sept 1975 [27 Sept 1974] 38741/75 Heading D2A In a method of dewatering a paper or board web W in the press section of a paper-making machine, the web W is detached from the machine wire 52 by a suction pick-up roll 3 operating within a pick-up felt 32, the web is transferred by the roll 3 to a suction transfer roll 4 without pressing, the web is passed on the top surface of a transfer felt 1a wrapping the roll 4 to a first dewatering press nip between an open roll 2a wrapped by the felt 1a and a suction roll 2b wrapped by a felt 1b, the web is then carried by the felt 1b into a second dewatering press nip between the roll 2b and a smooth roll 2c to which the web is transferred, and is then passed into a third press nip between the roll 2c and either an open dewatering roll 2d, or a soft coated smoothing roll (2e) (Fig. 2-not shown). As in Fig. 2 (not shown) the web may be taken off the roll 2c and fed to a final dewatering press nip between an open roll (7) and a smooth roll (8), a further felt (72) being wrapped around the roll (7). U.K. Specification 1266967 is referred to.
Patent GB-1410157-A (GB)
Title: Method and apparatus for introducing additives into a cast iron or iron alloy melt
IPC: C21C1/10
Filed: 1973-08-17
Abstract: 1410157 Introducing additives to ferrous melts KLOCKNER-HUMBOLDT-DEUTZ AG 17 Aug 1973 38956/73 Heading C7D Mg or other additive is added to a cast iron or iron alloy melt 2 in vessel 1 by means of a refractory immersion converter 3 having openings 10 admitting into reaction chamber 6 containing Mg. The converter 3 includes a steel reinforcing cage 9 to which is attached a metal filling pipe 13, the pipe 13 being fixed to a cover 14 for the vessel, The pipe 13 includes a rod 17 having a refractory plug 12 which closes the filling opening 11. In operation, the chamber 6 is filled with Mg, the opening 11 is plugged, and the cover 14 holding the converter 3 is lowered by jacks 18. The number of openings 10 is such that the reaction does not begin until the converter is completely submerged, In another embodiment Fig. 2 (not shown) the chamber has an asymmetrical shape,
Patent GB-897712-A (GB)
Title: Improved gate valve for fluid or vacuum pipe lines
IPC: F16K3/18
Filed: 1960-11-14
Abstract: 897,712. Valves. COMPAGNIE FRANCAISE THOMSON-HOUSTON. Nov. 14, 1960 [Nov. 27, 1959], No. 39028/60. Class 135. A gate valve for a fluid or vacuum pipe-line comprises a casing 2 having walls forming valve seats, a pair of closure members 5, 6 having parallel faces 7, 8 for contact with the seat and inclined faces 11, 12 co-operating with the surfaces 18, 19 of a wedge member 15 which forces the closure members into sealing contact with the seats, lugs 13, 14 being formed on the closure members for co-operation with shoulders 16, 17 on the wedge member so that after the initial releasing movement of the wedge the closure members are lifted in order to open the valve. On closing the valve the closure members abut stop-blocks 3, 4, the wedge 15 continuing its movement until it makes contact with the inclined surfaces 5, 6. 0-rings may be located in grooves formed in the closure member or in the seat surfaces of the casing.
Patent GB-1109278-A (GB)
Title: Wall board
Inventor: CURTIS ROLANDO TALLIAFERRO
IPC: E04F13/18
Filed: 1965-09-13
Abstract: 1,109,278. Laminates. V-W CORPORATION. 13 Sept., 1965, No. 39043/65. Heading B5N. A wall board comprises a substantially flat core 12 which has a pair of elongated substantially straight edges, and flexible sheet facing material 16 covering one of the sides of the core and extending beyond said edges and around said edges to the other side of the core and enclosing said edges and leaving sufficient free space 22 between the edges of the core and the material 16 to allow compression of the material 16 in directions transverse to the directions of elongation of said edges, and adhesive means securing the material 16 to the said one of said sides and securing to the other of said sides the portions of the material 16 which extend around the edges of the core to the other side of the core. As described the core material 12 is of insulating compressible material, e.g. foamed polystyrene, covered on one or, as shown, both, faces with a cardboard or heavy paper panel 14. The material 16 which is veneer, vinyl resin sheet, or paper, and is preferably vinyl resin covered hardwood veneer, is secured to the core by a contact adhesive, and may cover part or all of the back of the wall board. The wall board is secured to a wall or other surface by a mastic adhesive, nails, or screws. To enable the board to cover a corner it is grooved on one face to allow the board to be bent into two sections at 90 degrees to each other. In a process for manufacturing a wall board a vinyl resin covered hardwood veneer is coated with a contact adhesive and placed on a core comprising an insulating core material covered with cardboard or heavy paper panels on both sides. The assembly is then passed through bonding and compressing rollers. The free edges of the sheet material are recoated with adhesive, rolled about the side edges of the core by a folding machine, and adhered to the back of the wall board.
Patent GB-976888-A (GB)
Title: New or improved textile yarns and fabrics constructed thereof
IPC: D02G3/04
Filed: 1962-10-16
Abstract: In yarn comprising a blend of 60-66% wool fibres and 40-34% polypropylene fibres, the latter are longer than the wool fibres so that brushing the yarn (or fabric knitted or woven therefrom) will raise a nap consisting almost entire of polypropylene fibre interlocked with the wool base.  The component fibres may be of different colour or shade before blending and/or as a result of dyeing the yarn or fabric.  The blend may contain a small admixture of other natural or artificial fibres.
Patent GB-1408554-A (GB)
Title: Crosslinking of double base propellants
IPC: C08B15/10
Filed: 1966-09-01
Abstract: 1408554 Propellants USA NAVY SECRETARY OF 1 Sept 1966 39177/66 Heading C1D A propellant composition comprises nitrocellulose, a solid oxidizer, a metal fuel, and a liquid organic nitrate plasticizer, and the nitrocellulose is reacted with a cross-linking agent containing at least two isocyanate groups and a cross-linking catalyst, in order to increase the tensile strength and modulus of the propellant and to decrease its elongation. The solid oxidizer may be ammonium perchlorate, nitroguanidine, HMX, or RDX. The metal fuel used is aluminium; carboranylmethyl acrylate may be added as a liquid fuel. Organic nitrate plasticizers referred to are the explosive compounds nitroglycerine, diethylene glycol dinitrate, triethylene glycol dinitrate, and trimethylol methane trinitrate; a non-explosive ester, ketone, nitrile, or nitro compound is mixed with the explosive compound. The preferred cross-linking agent is 2,4-tolylene diisocyanate, but other isocyanates are referred to. The cross-linking catalyst may be ferric acetylacetonate, lead 2-ethyl hexoate, or dibutyl tin diacetate. Stabilizers which may be added are 2-nitrodiphenylamine, ethyl centralite, and resorcinol diacetate. In examples, other ingredients not referred to specifically above are triacetin, di-n-propyl adipate, ferric oxide, calcium phosphate, dioctyl phthalate, and diallyl phthalate. Methods of manufacture of the composition are as follows: (a) the ingredients, except the cross-linking agent, are mixed with methylene chloride, most of which is removed by heating under reduced pressure, the cross-linking agent is added, and the product cured by heat; (b) all the components are stirred together under reduced pressure and cured by heat; (c) solid components are added to a solution of the soluble ingredients in the organic nitrate plasticizer under reduced pressure.
Patent GB-1480356-A (GB)
Title: Silencer for supercharger
IPC: F02M35/12
Filed: 1974-09-09
Abstract: 1480356 Air intake silencers for IC engines MITSUI SHIPBUILDING & ENG CO Ltd 9 Sept 1974 [11 Sept 1973] 39235/74 Heading F1B A silencer for an I.C. engine supercharger 11 comprises coaxial cylinders 18, 19 within an outer casing 16 to define a zigzag passage, soundabsorbing means 20 spaced from the walls of the passage, an air suction opening in the outer casing, and an inner end opening of the passage for connection to an intake port of the supercharger, the passage having at least one restricting portion II and one expansion portion III. A suction opening, containing a filter 13, is provided in each of the three upper faces of the octagonal outer casing 16.
Patent GB-395106-A (GB)
Abstract: 395,106. Calculating-machines. GUSTAFSSON, E. V., 95B, Regeringsgatan, Stockholm, and HELLGREN, G. H., Karlberg, Vallentuna, both in Sweden. March 30, 1932, No. 9160. [Class 106 (i).] In a ten-key set and independently operated calculating-machine of the type described in Specification 368,311 having a denomination selector containing stops controlled by keys or other setting members, the stops are provided at their ends with numerals which are brought into an observable position upon the depression of the corresponding keys. The denomination selector comprises a carriage formed of upper and lower plates 8, 9, Fig. 3, and endplates 10, 11, and is guided on rails 16, 17, Fig. 2, by rollers 12, 13. Stops 25, arranged in sets of ten, slide in slots in the plates 8, 9 and upon the depression of a key the corresponding stop is projected by a link 29 and a hammer 28 pivoted at 27a. The selector carriage is stepped to the left by known means and the projected stop is kept in raised position by the engagement of a lug 20 on it with a fixed rod 33. Each stop bears a numeral corresponding to its value and when the stop is raised this numeral becomes visible through an opening 4 in the machine casing. During the operation of the machine arms 24 are rocked until arrested by the parts 25 of the projected stops. During the return of the selector carriage the stops are reset by the sloping part 40 of a plate 36 hinged at 39 to the machine frame. The end-plate 11 of the selector contacts with a projection 41 of the plate 36 to ensure that all the stops are completely reset. Specification 385,630 also is referred to.
Patent GB-1401781-A (GB)
Title: Dehydrocyclization of paraffins and a catalyst therefor
IPC: B01J29/12
Filed: 1972-08-25
Abstract: 1401781 Dehydrocyclization catalysts SUN VENTURES INC 25 Aug 1972 [26 Aug 1971 8 May 1972] 39696/72 Heading B1E [Also in Division C5] Catalysts comprise sodium zeolite X or sodium zeolite Y containing 0.10 to 1.2 wt% Pt in substantially the monomolecular free metal state and less than 0.10 wt% of chlorine. Preferably the catalysts are substantially free of acid zeolite sites. They may be prepared by treating sodium zeolite X or Y with a dilute aqueous solution of a sodium salt and a platinum salt at 25-80‹C to ionexchange platinum ions for sodium ions in the zeolite, washing the ion-exchanged zeolite with water, drying the washed zeolite calcining the zeolite and reducing the platinum to the free metal state in flowing hydrogen at 350-550‹C. The ion-exchanged zeolite may be treated with a dilute solution of a sodium salt, e.g. bicarbonate, before being washed with water.
Patent GB-348048-A (GB)
Title: Improvements in or relating to machines for sawing under water
IPC: B23D47/00
Filed: 1929-12-31
Abstract: 348,048. Subaqueous sawing-machines. NAAMLOOZE VENNOOTSCHAP NEDERLANDSCHE AANNEMING-MAATSCHAPPIJ VORHEEN FA. H. F. BOERS MA and KATER, J. G. DE, 135, Binckhorstlaan, The Hague. Dec. 31, 1929, No. 39878. [Class 145 (ii).] Sheet-iron piles or the like are sawn off under water by a reciprocating saw 41 carried by vertical arms 40 depending from the ends of the limbs of a horizontal U-shaped saw bow 35 which rests on a carriage 28 and is positioned thereon by the lower ends 36 of supporting- ropes 37. The carriage 28 is guided across a bedplate 26 by means of ribs 29 and is reciprocated by a crank 31 rotated by a motor 33 through a shaft 32 with-universal joints 34. In order to feed the saw the bedplate 26, carrying the saw and its actuating mechanism, is moved horizontally along parallel guide rods 10, 15 by the action of a feed screw 18 and a ratchet-wheel nut 44 which is rotated step-by-step by means of a driving pawl 48 carried by an arm 46 which is connected to the saw carriage 28 by a link 47. A second pawl 49 is carried on the arm 46 and a check pawl 53 mounted on a bracket 42 on the bedplate 26 is connected to the pawl 49 by a curved arm 56, both pawls being controlled by a pin 58 normally projecting through the bracket 42 so as to act on the pawl 49 and disengage it from the teeth over part of the stroke of the arm, at the same time bringing the pawl 53 into engagement. If the load on the saw increases unduly the saw bow 35 yields sufficiently to engage two hooks 61, 70 one with the other, whereby the saw in moving to the right (Fig. 6), pulls the pin 58 back and stops the feed. The feed screw 18 is rotated by hand-operated gear 13 to retract the bedplate 26, which rests on a U-shaped frame formed by parallel bearers 1, 2 and a cross-piece 3. This frame is clamped in position by screw clamps 7, 8 actuated from the surface. In cutting through a wall of piles the apparatus is preferably arranged at a slight incline, making a succession of cuts as shown in Fig. 9.
Patent GB-1488016-A (GB)
Title: Cover for use in heat retention at the top surface of a feeder head in casting molten metals
IPC: B22D27/06
Filed: 1974-09-13
Abstract: 1488016 Hot tops AIKOH CO Ltd 13 Sept 1974 [23 Jan 1974 18 Feb 1974 9 March 1974] 40051/74 Heading C3N [Also in Division B3] A cover for retaining heat in a casting hot top comprises 3 to 15% by weight organic binder (e.g. thermosetting resin), 3 to 15% organic fibrous material (e.g. paper pulp, wood pulp, cotton fibre), coarse crushed charcoal of not greater than 10 mm. particle size, vermioulite and/or thermo-expandable graphite, wherein the weight ratio of charcoal to the total of the vermiculite and/or thermo-expandable graphite when the particle size of the charcoal is 2 to 10 mm. being 1 : 0À07 to 1 : 0À20, and for a charcoal particle size below 2 mm. 1 : 0À10 to 1 : 0À40. Coal, coke and non-thermo-expandable graphite may also be added.
Patent GB-1015520-A (GB)
Title: Gantry type drilling machines
IPC: E21B7/02
Filed: 1964-10-02
Abstract: 1,015,520. Percussive drills. INGERSOLL-RAND WORLD TRADE Ltd. Oct. 2, 1964 [Oct. 7, 1963], No. 40145/64. Heading B4C. A drilling machine comprises a base 10 having a pair of drilling mechanisms connected to variablelength booms 30 which are pivotally mounted on a portion 11 of the base and positioned by rams 33, and an operator's platform 26 mounted on a boom 27 positioned by a ram 29. The base is provided with three feet 20, 21 which are actuated by rams 24, 25 in order to raise the base 10 from the ground. The machine is moved by means of a wheeled carriage. In the construction illustrated, Fig. 4 (not shown), the machine is mounted on a pair of wheeled axles 44, 45, the axle 45 being fixed to the machine base 40 d anthe axle 44 being movable from loa eating groove 43 to the position shown when the stabilizing foot 50 is used; racks 46 are provided for the wheels.
Patent GB-1439005-A (GB)
Title: Rolling mills
IPC: B21B31/30
Filed: 1973-08-24
Abstract: 1439005 Rolling mills DEMAG AG 24 Aug 1973 [25 Aug 1972] 40204/73 Heading B3M To enable the housings 1 and 2 of a roll stand to accommodate rolls of different axial length, clock supporting blocks 17 and 18, whose height can simultaneously be adjusted, are positioned between the housings and the chocks 23 and 24 of a roll. The two halves of the drawing show how rolls of different length are supported on the blocks by thrust blocks 19 and 20. The blocks rest on wedges 5 and 6 connected by an oppositely threaded shaft 11. Movement of the wedges towards and away from each other by the shaft causes vertical adjustment of the blocks. Movement of the wedges may alternatively be effected electrically or hydraulically.